Liquid dispensing valve



Aug. 5, 1947. F. w. OPI-rz LIQUID DISPENSING VALVE Filed June 14, 1945 re D j,

Patented Aug. 5, 1947 IUNITED STATES PATENT OFFICE LIQUID DISPENSING VALVE Fred-W. Opitz, Chicago, Ill.

Application IJune 14, 1945, Serial"No.-599,3E'\8 6 Claims. l

The present inventionrelates generally to liquid dispensing valves, but moreparticularly to a new, useful and simplified constructionof aVV compact, detachable, wall-type dispensing valve.

One of the objectsv'of the present invention `is to provide a novel and simplified constructionl of liquid dispensing valve for discharging a charge of liquid such as hand lotion or the like, and at the same timeprevent dripping from the discharge spout when not in use.

A further object of the invention is to provide a novel and improved dispensing valve adapted to be removably mounted on a wall for supporting an inverted bottle of :liquid thereon so that the same may be conveniently located for use.

These and other objects are accomplished by providing a construction andan arrangement of the various parts in the manner hereinafter described and particularly pointed out in the appended claims.

Referringl to the drawings:

Fig. 1 is a side elevational view ofl my improved dispensing valve showing the-manner inwhich the inverted bottle `is supported thereon;

Fig. 2 is an enlarged top plan view'of the same;

Fig. 3 is a cross sectional view taken on the liney 3-3 in Fig. 2. of the' drawings;

Fig. 4 is a similar view showing the plunger depressed;

Fig. 5 is a cross sectional view taken on the line 5-5 in Fig. 4 of the drawings; and

Fig. 6 isa cross sectional view taken on the line 3-6 in Fig. 4 of the-drawings.

In illustrating one form of my invention I have shown the same as comprising a maincylindrical member or casing I0 which has a right angular flange or-baseportion as shown at II for removably attaching the dispensing valve on a wall in th'e position shown in Fig. lof the drawings. The base portion II has oppositely positioned key-hole-like slots I2 which are adapted to slide over the heads of `screws I3'for supporting the valve on the-wall. Formed integrally with the casing member I0 and extending vertically Vvupwardly therefrom is an internally threaded collar I4 for receiving in engagement therewith and supporting thereon a threaded neck of an inverted bottle I5. The casing I0 has a longitudinally extending bore I6 adjacent its outer end which' forms the spring chamber. Extending inl axial alignment with the bore I6 is a relatively smaller bore or liquid chamber I'I. Formed between these bores I6 and I'I is an annularshoulder I8. The inner endof the'boreor (Cl. Z22-34,0)

liquid chamberv II communicates with an aligned and relatively smaller longitudinal bore or valve chamber I9. 'A vtapered shoulder 29 is formed between these bores. Extending longitudinally of the casing I0 and in the periphery of the bore I9 is .a relatively small groove or passageway 2I which constantly'communicates the bore or valve chamber I9 with the bore yor liquid chamber I'I. This groove serves to permit any accumulation of liquid in the valve chamber to be returned to the iliquidvchamber I'I. Formed integrallywith the casing I :on the lower side thereof is a discharge nipple 22. Extendingdownwardlyand angularly Athrough the nipple22 and communicating with' `the valve chamber I9 is a ydischarge port oropening 23. Formed in communication with the liquid chamber or bore I'I and the Aannular member I4 is an inlet portor opening 24 through which the liquid flows from the neck of the inverted bottle I5 into the dispensive valve. Snugly fitting the bore I6 against theshoulder I8 is a washer 25 which hasa centralopening 21. Th'e washer 25 has a bevelled seat 26 on one side thereof surrounding the central opening'ZI. Reciprocally mounted inthe opening 2'I of the washer 25 is a plunger, generally vindicated bythe reference character 28. Formed integrally with the plunger or rod 28 is a disc-like plunger head29 which is adapted to be reciprocably moved within th'e bore or liquid chamber I'I. Formed integrally with the p-lunger orf rod 28 and head 29 is a reduced extensionSIl. Formed integrally with the extension 30 and of a relatively larger diameter than the extension is a cylindrical head or valve member 3l which slidably ts in and is adapted to be reciprocated inthe bore or valve chamber I9 of the casing I0. Secured in any well known manner to the outer end of the plunger or rod 28 is a thimble-like member or cap 32. Extending into the cap 32 and surrounding the .plunger or rod 28'is one end of a compression spring 33. The other or innerend of the spring 33 seats on a packing washer VSI1 which in turln is seated inthe beveled recess 26 ofthe washer 25 to seal the spring .chambery I6 from .the .liquid .chamber Il.

"summarizing the advantages and function of operationof my improvedliquid dispensing valve, it will be understoodYV that when the valve casing is attached Ato the wall .and supports thereon-an inverted bottle containing hand lotion or vthe like 7in the manner sh'ownrin Fig. l-of the drawings, the spring v33 will normally actuate-the plunger 28 toits' outermost/position or the position shownwinFig. 3. ofthe drawings. .In this position the yliquidxinrthe .bottle will flow by gravity through the inlet port '24 to the liquid chamber At the same time, the valve head 3| covers the outlet port 23. When the plunger 28 is moved inwardly by depressing th'e cap 32 to the position shown in broken lines in Fig. 4 of the drawings, the disc-like valve member 29 covers the inlet port 24, and valve head 3| uncovers the outlet port 23 to permit the trapped liquid in the liquid chamber to be discharged from the nipple 22. When the pressure is released from the cap 32, the spring 33 will return the plunger and valve members from the full line position shown in Fig. 4 of the drawings to the position shown in Fig. 1 of the drawings. connection it will be noted that during a portion of the return movement of the valve member 29, there will be created a partial vacuum in the liquid chamber I1, which will siphon the liquid from the outlet port 23 to thereby prevent dripping or leakage therefrom. At the same time, a certain amount of air will be drawn into the inlet port which will eventually pass from the liquid chamber to the top of the inverted bottle and thus permit the free flow of the liquid from the bottle to the dispensing valve.

It will also be obvious that in the event liquid accumulates in the valve chamber |9 ahead of the valve member 3|, the same will be discharged through the groove 2| on the inward stroke of the plunger.

From the above description it will be seen that I have not only provided a simple and compact liquid dispensing valve, but also one which will effectively and eiciently dispense liquid therefrom without dripping or leakage from the outlet port when the plunger is returned to its normal position.

While in the above specication I have described one embodiment which my invention may assume in practice, it will, of course, be understood that the same is capable of modification and that such modification may be made without departing from th'e spirit and scope of the invention as expressed in the following claims.

What I claim as my invention and desire to secure by Letters Patent is:

1. A liquid dispensing valve comprising a casing, an internally threaded collar formed integrally therewith for supporting an inverted bottle thereon, there being a longitudinal bore in said casing forming a liquid chamber and a valve chamber, an inlet port communicating said collar with said liquid chamber, a nipple formed integrally with said casing having an outlet port communicating with the valve chamber, there being a passageway in said casing forming a constant communication -between said chambers, and a plunger mounted in said bore for controlling said inlet port and said outlet port.

2. A liquid dispensing valve comprising a casing, an internally threaded collar fromed integrally therewith for supporting an inverted bot- In this plunger.

tle thereon, there being a longitudinal bore in said 4. A liquid dispensing valve comprising a casing, said casing having a longitudinally extending bore divided into a spring chamber, a, liquid chamber and a valve chamber, a separate communication between said liquid chamber and said valve chamber, said casing having an inlet port communicating with said liquid chamber, and an outlet port communicating with said valve chamber, a reciprocating plunger mounted in said bore, a disc-like valve member carried by said plunger and adapted to control said inlet port, a second valve member carried by said plunger and adapted to control said outlet port, a spring mounted in said spring chamber for normally actuating said plunger, and a cap embracing one end of said spring and telescopically mounted in said spring chamber.

5. A liquid dispensing valve comprising a casing, said casing having a longitudinally extending bore divided into a spring chamber, a liquid chamber and a valve chamber, said casing having an inlet port communicating with said liquid chamber and an outlet port communicating with said valve chamber, a reciprocating plunger mounted in sai-d bore, a disc-like valve member carried by said plunger and adapted to control said inlet port, a second valve member carried by said plunger and adapted to control said outlet port, there being a longitudinally extending groove in said second named valve member forming communication between said liquid chamber and said Valve chamber, and a compression spring embracing said plunger and located in said spring chamber for normally returning said plunger.

6. A liquid 'dispensing valve comprising a casing, said casing having a longitudinally extending bore divided into a spring chamber, a liquid chamber and a valve chamber, said casing having an inlet port communicating with said liquid chamber and an outlet port communicating with said valve chamber, a reciprocating plunger mounted in said bore, a disc-like valve member mounted intermediate the ends of said plunger and located in said liquid chamber for controlling said inlet port, a second valve member carried at the inner end of said plunger for controlling said outlet port, there being a longitudinal groove in saidcasing adjacent said second named valve member forming the communication between said liquid chamber and said valve chamber, and a spring mounted in said spring chamber for normally returning said plunger.

FRED W. OPITZ.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 889,306 Hoilman June 2, 1908 l1,174,674 Byer Mar. 7, 1916 

